Java Code Examples for org.eclipse.jface.viewers.CheckboxTreeViewer#getGrayed()

The following examples show how to use org.eclipse.jface.viewers.CheckboxTreeViewer#getGrayed() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: DirectoryTreeContentProvider.java    From eclipse with Apache License 2.0 8 votes vote down vote up 
private static void setChecked(final CheckboxTreeViewer tv, Object element) {
  // When user checks a checkbox in the tree, check all its children and mark parent as greyed
  // When a user uncheck a checkbox, mark the subtree as unchecked and ungrayed and if unique
  // sibling parent as grayed.
  DirectoryTreeContentProvider provider = (DirectoryTreeContentProvider) tv.getContentProvider();

  boolean isChecked = tv.getChecked(element);
  if (tv.getGrayed(element)) {
    isChecked = !isChecked;
  }
  tv.setChecked(element, isChecked);
  tv.setGrayed(element, false);
  if (isChecked) {
    tv.setSubtreeChecked(element, true);
  } else {
    tv.setSubtreeChecked(element, false);
  }
  setGrayed(tv, provider.getParent(element));
}
Example 2
Source File: DirectoryTreeContentProvider.java    From eclipse with Apache License 2.0 6 votes vote down vote up 
private static void setGrayed(CheckboxTreeViewer tv, Object element) {
  if (element == null) {
    return;
  }
  DirectoryTreeContentProvider provider = (DirectoryTreeContentProvider) tv.getContentProvider();
  boolean checked = tv.getChecked(element);
  boolean grayed = false;
  for (Object object : provider.getChildren(element)) {
    grayed = grayed || tv.getGrayed(object) || tv.getChecked(object);
    checked = checked && tv.getChecked(object) && !tv.getGrayed(element);
  }
  if (checked) {
    tv.setChecked(element, true);
    tv.setGrayed(element, false);
  } else if (grayed) {
    tv.setGrayChecked(element, true);
  } else {
    tv.setChecked(element, false);
    tv.setGrayed(element, false);
  }
  setGrayed(tv, provider.getParent(element));
}
Example 3
Source File: DirectoryTreeContentProvider.java    From eclipse with Apache License 2.0 6 votes vote down vote up 
/**
 * Returns the list of path selected in <code>tv</code>. It returns the list of checked path
 * without the children of the checked path. Each path is returned as a string giving the relative
 * path from the root of the tree.
 */
static ImmutableList<String> getSelectPathsRelativeToRoot(CheckboxTreeViewer tv) {
  DirectoryTreeContentProvider provider = (DirectoryTreeContentProvider) tv.getContentProvider();
  String root = provider.root.getAbsolutePath();
  ImmutableList.Builder<String> builder = ImmutableList.builder();
  for (Object element : tv.getCheckedElements()) {
    if (!tv.getGrayed(element)) {
      Object parent = provider.getParent(element);
      if (parent == null || tv.getGrayed(parent)) {
        // Only add this element if its parent is not selected (so it's the root).
        String path = ((File) element).getAbsolutePath();
        // Strip root from path
        if (path.startsWith(root)) {
          path = path.substring(root.length());
          if (path.startsWith("/")) {
            path = path.substring(1);
          }
          builder.add(path);
        }
      }
    }
  }
  return builder.build();
}
Example 4
Source File: ResourceSelectionTree.java    From APICloud-Studio with GNU General Public License v3.0 6 votes vote down vote up 
private void updateParentState(IResource child, boolean baseChildState) {
	if (mode == MODE_FLAT || child == null || child.getParent() == null || resourceList.contains(child.getParent())) {
		return;
	}
	CheckboxTreeViewer checkboxTreeViewer = (CheckboxTreeViewer)treeViewer;
	if (child == null) return;
	Object parent = resourceSelectionContentProvider.getParent(child);
	if (parent == null) return;
	boolean allSameState = true;
	Object[] children = null;
	children = resourceSelectionContentProvider.getChildren(parent);
	for (int i = children.length - 1; i >= 0; i--) {
		if (checkboxTreeViewer.getChecked(children[i]) != baseChildState || checkboxTreeViewer.getGrayed(children[i])) {
		   allSameState = false;
	       break;
		}
	}
	checkboxTreeViewer.setGrayed(parent, !allSameState);
	checkboxTreeViewer.setChecked(parent, !allSameState || baseChildState);
	updateParentState((IResource)parent, baseChildState);
}